Bookbinder.



NQ- 722,903- PJATENTBD MAR.17,'1 903.

G. s. RING. BoogiBINDER. APPLIUATION FILED MAY 27, 1902.

I0 HODEL.

Wlness es.: I/*wenovu g, @L /Wa H0729? 3- Riny UNITED STATES "PATENT FFICE..

GERGE s. RING, or'sr.` PAUL, MINNESOTA.

BQOKBINDER SPECIFICATION' forming part of I Letters Patent No..v 722,903, dated March 17, 1903. Application filed May 27,1902. Serial No. 109,150. (No model.) l

To @ZZ whom t may concern,.-

Be it known that I, GEORGE S. RING, a citizen of the United States of America, and a resident of St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Bookbinders, of which the Afollowing is a specification.

My invention relates to improvements in bookbinders, and more particularly to that class in which separate leaves or groups of leaves maybe attached and detached from the cover. v

My invention consists of a book-cover having transverse straps fastened in its back and wire frames adapted to engage said straps to hold the leaves.

In the accompanying drawings,1 forming part of this speciiication, Figure 1. is a perspective view of ahook, showing my'improve'd binder. Fig. 2 is a detail sectional view of said book. Fig. 3 is a perspective view of a wire frame for attaching the leaves to the straps inside the back of the cover. Fig. is a detail view looking toward one end of the book, showing the cover closed.` Fig. 5 is a similar view showing the cover open; and Fig. 6 is asection of Fig. 3, taken on the line X X.

In the drawings, let A represent the book-v cover, which consists of the sides 2 and 3, pro-- vided with the back 4 of ordinary construction. The straps and 6 are fastened to the side 3 by the rivets-7.011V other suitable means and form loops Within theback when the opposite ends of the straps are adjusted to the side 2 by means of the buckles 10 Yand 11. These transverse straps pass, as shownin the drawings, through the slots at 8 and 9-near each end of the cover inside the back.

leaves of the book in the cover. These frames are preferably constructed of iiat Wire, as

illustrated by the cross-sectional view Fig. 6.

Each frame consists of a single piece of Wire bent back at 12 and 13, so as to form springarms 1/1 and 15, which engage the trunk 16 of the frame for the purpose of attaching the The'n wire frames B are provided for fasteningY the the hooks 17 and 18 to engage when the arms are closed. The leaves of the book are perforated at 24 and 21 to receive vthe eyes 19 and 20. By twisting the wire in forming the spring-arms I cause the hooks to lock more securely in the loops 19 and 20.

To fasten the frame to the leaves, the sheets or pairs of leaves are passed around the trunk 16,and the loops 19 and 2O are inserted through the perforations 24. and 21. The spring-arms 14. and 15 are then passed around the straps 5 and 6 in the back of the cover and the hooks fastened in the loops. Each frame is adapted to hold one or more sheets, and each set of leaves on a frame forms asection C in the book. When attaching a sheet or a new section of leaves to the cover,thebuckles are unfastened and the straps disengaged from the side 2, as shown in Fig. 5. The frame may then be readily "attached to or detached from the straps either by unhooking the arms from the loops 19 and 2O or by slipping the straps through the openings 22 and 23 between the arms and trunk 16 of the frame. When the frames have-been attached to the straps, the straps are reinserted through the slots 9, drawn tightly through the buckles, and fastened.

It is obvious that by means of the adjusting-straps described the cover is adapted to hold either a large or small number of sheets or sections of leaves, as desired, and that in many instances only one frame need be used.

Having described my invention, What'I claim as new, and desire to protect by Letters Patent, is

. 1. A bookbinder, consisting of a cover with straps within its back, in combination with a rod having hooks upon its ends, and loops between said ends, said hooks being adapted to engage said loops and lock, and the ends of saidstraps to pass through said hooks and cover and fasten.

2. A bookbinder, consisting in combination with a cover having transverse straps across and inside the back thereof, of buckles v ICO ends bent back to form hooked arms, said the leaves in the cover, each rod consisting arms being adapted to pass around said straps of a Wire having its ends bent back upon the and engage the loops. central portion thereof, the ends being pro- 15 3. A bookbinder, consisting in combinavided with hooks and the central portion with 5 tion with a cover having a back, of a pair of loops for engaging the hooks.

straps, each fastened at one end in the cover In testimony whereof I have signed my and extending between the sides of the cover naine to this specification in the presence of adjoining the back, perforations in the cover tWo subscribing Witnesses.y

through which the free ends of the straps pro- GEORGE S. RING. 1o ject, a buckle on the outside of the cover Witnesses:

adapted to adjust the free end of each strap E. M. B OESEL,

in place, and a plurality of rods for holding l J. E. STRYKER. 

